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                            <b>2.1.4.</b>
                        
                        后代选择符
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                            <b>2.1.5.</b>
                        
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                            <b>2.1.6.</b>
                        
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                            <b>2.1.8.</b>
                        
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                        CSS样式属性
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                        diplay属性
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                        float浮动
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                        对齐属性
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                            <b>2.2.9.</b>
                        
                        定位属性
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                            <b>2.2.10.</b>
                        
                        图片处理
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                            <b>2.2.11.</b>
                        
                        文本属性
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                            <b>2.2.12.</b>
                        
                        css初始化
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                        nvm管理nodejs
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                        npm介绍及使用
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<pre><code>
&lt;style&gt;
.test1{
    width: 100px;
    height: 100px;
    background: pink;
    position: absolute;
}

.test2{
    width: 100px;
    height: 100px;
    background: pink;
}
&lt;/style&gt;

&lt;div class=&quot;test1&quot;&gt;&#x6211;&#x662F;&#x4E00;&#x53EA;&#x5FEB;&#x4E50;&#x7684;&#x5C0F;&#x7070;&#x72FC;&lt;/div&gt;
&lt;div class=&quot;baba&quot;&gt;
&lt;div class=&quot;test2&quot;&gt;&#x6211;&#x662F;&#x4E00;&#x53EA;&#x67D4;&#x5F31;&#x7684;&#x5C0F;&#x80A5;&#x7F8A;&lt;/div&gt;
&lt;/div&gt;
</code></pre><p><strong>&#x6CE8;&#x610F;&#x70B9;</strong></p>
<p>1.&#x8131;&#x79BB;&#x6587;&#x6863;&#x6D41;&#xFF0C;&#x6240;&#x4EE5;&#x4E0D;&#x518D;&#x5360;&#x7528;&#x6B63;&#x5E38;&#x6587;&#x6863;&#x6D41;&#x7684;&#x4F4D;&#x7F6E;<br>2.&#x975E;&#x5E38;&#x7684;&#x81EA;&#x7531;&#xFF0C;&#x53EF;&#x4EE5;&#x968F;&#x610F;&#x65B9;&#x4FBF;&#x7684;&#x8BBE;&#x7F6E;&#x4F4D;&#x7F6E;&#x4FE1;&#x606F;&#xFF0C;&#x901A;&#x5E38;&#x9009;&#x62E9;&#x56DB;&#x4E2A;&#x65B9;&#x5411;&#x7684;2&#x4E2A;&#x5C31;&#x53EF;&#x4EE5;<br>3.&#x4E0D;&#x5BB9;&#x6613;&#x53D7;&#x632B;&#xFF0C;&#x4E0D;&#x53D7;&#x5143;&#x7D20;&#x7ED3;&#x6784;&#x7684;&#x5F71;&#x54CD;&#xFF0C;&#x4E5F;&#x4E0D;&#x53D7;&#x51FA;&#x751F;&#x4F4D;&#x7F6E;&#x7684;&#x5F71;&#x54CD;&#xFF0C;&#x5982;&#x679C;&#x7236;&#x5143;&#x7D20;&#x4E0D;&#x662F;&#x5E26;&#x6709;&#x5B9A;&#x4F4D;&#x4FE1;&#x606F;&#xFF0C;&#x5219;&#x6839;&#x636E;body&#x7684;&#x5DE6;&#x4E0A;&#x89D2;&#x4F5C;&#x4E3A;&#x53C2;&#x8003;&#x70B9;&#x3002;   &#x5426;&#x5219;&#xFF0C;&#x5219;&#x4EE5;&#x7236;&#x5143;&#x7D20;&#x7684;&#x5DE6;&#x4E0A;&#x89D2;&#x4F5C;&#x4E3A;&#x53C2;&#x8003;&#x70B9;&#x3002;&#xFF08;&#x5E26;&#x6709;&#x5B9A;&#x4F4D;&#x4FE1;&#x606F;&#x7684;&#x5143;&#x7D20;&#xFF0C;&#x662F;&#x6307;&#x8BBE;&#x7F6E;&#x4E86;&#x7EDD;&#x5BF9;&#x5B9A;&#x4F4D;&#xFF0C;&#x76F8;&#x5BF9;&#x5B9A;&#x4F4D;&#xFF0C;&#x56FA;&#x5B9A;&#x5B9A;&#x4F4D;&#x7684;&#x5143;&#x7D20;&#xFF09;
&#x4F46;&#x6211;&#x4EEC;&#x66F4;&#x63A8;&#x8350;&#x4F7F;&#x7528;&#x76F8;&#x5BF9;&#x5B9A;&#x4F4D;&#x6765;&#x7BA1;&#x7406;&#x7EDD;&#x5BF9;&#x5B9A;&#x4F4D;&#x7684;&#x5143;&#x7D20;&#xFF09;</p>
<h3 id="relative&#x76F8;&#x5BF9;&#x5B9A;&#x4F4D;">relative(&#x76F8;&#x5BF9;&#x5B9A;&#x4F4D;)</h3>
<p>&#x901A;&#x5E38;&#x7528;&#x6765;&#x63A7;&#x5236;&#x7EDD;&#x5BF9;&#x5B9A;&#x4F4D;&#x7684;&#x5143;&#x7D20;</p>
<pre><code>.baba{
width: 300px;
    height: 300px;
    background: black;
    position: relative;
    left: 100px;
    top: 100px;
}
    .son{
    width: 50px;
    height: 50px;
    background: red;
    position: absolute;
    left: 30px;
    top: 30px;
}
    &lt;/style&gt;
    &lt;div class=&quot;baba&quot;&gt;
    &lt;div class=&quot;son&quot;&gt;&lt;/div&gt;
    &lt;/div&gt;
</code></pre><p><strong>&#x6CE8;&#x610F;&#x70B9;</strong></p>
<p>1.&#x5E76;&#x6CA1;&#x6709;&#x8131;&#x79BB;&#x6587;&#x6863;&#x6D41;&#xFF0C;&#x76F8;&#x5BF9;&#x5B9A;&#x4F4D;&#x662F;&#x6307;&#x76F8;&#x5BF9;&#x4E8E;&#x8FD9;&#x4E2A;&#x5143;&#x7D20;&#x672C;&#x8EAB;&#x6240;&#x4EE5;&#x5728;&#x6587;&#x6863;&#x6D41;&#x7684;&#x4F4D;&#x7F6E;&#xFF0C;&#x8FDB;&#x884C;&#x504F;&#x79FB;&#xFF0C;&#xFF08;&#x6240;&#x4EE5;&#x53C2;&#x8003;&#x70B9;&#x662F;&#x4ED6;&#x81EA;&#x5DF1;&#x539F;&#x672C;&#x7684;&#x4F4D;&#x7F6E;&#x7684;&#x5DE6;&#x4E0A;&#x89D2;<br>2.&#x6B63;&#x5E38;&#x4F7F;&#x7528;&#x8FC7;&#x7A0B;&#x4E2D;&#xFF0C;&#x6211;&#x4EEC;&#x901A;&#x5E38;&#x4E0D;&#x4F1A;&#x4F7F;&#x7528;left&#x7B49;&#x503C;&#xFF0C;&#x53BB;&#x6539;&#x53D8;&#x4ED6;&#x7684;&#x4F4D;&#x7F6E;&#xFF0C;&#x56E0;&#x4E3A;&#x8FD9;&#x6837;&#x4E0D;&#x5229;&#x4E8E;&#x6211;&#x4EEC;&#x5E03;&#x5C40;</p>
<h3 id="fixed&#x56FA;&#x5B9A;&#x5B9A;&#x4F4D;">fixed(&#x56FA;&#x5B9A;&#x5B9A;&#x4F4D;)</h3>
<pre><code>&lt;style type=&quot;text/css&quot;&gt;
.ad{
    position: fixed;
    right:  0;
    bottom: 0;
}
body{
    height: 9999px;
}
&lt;/style&gt;
&lt;div class=&quot;ad&quot;&gt;
&lt;img src=&quot;img/499_@YJU4R0JOJY)9KX4O}K.png&quot; alt=&quot;&quot; /&gt;
&lt;/div&gt;
</code></pre><p><strong>&#x6CE8;&#x610F;&#x70B9;</strong>
1.&#x6C38;&#x8FDC;&#x53C2;&#x7167;&#x7A97;&#x53E3;&#x7684;&#x5DE6;&#x4E0A;&#x89D2;&#x4F5C;&#x4E3A;&#x57FA;&#x51C6;&#x70B9;&#xFF0C;&#x4E0D;&#x53D7;&#x4EFB;&#x4F55;&#x7236;&#x5143;&#x7D20;&#x7684;&#x63A7;&#x5236;
2.&#x901A;&#x5E38;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x56FA;&#x5B9A;&#x67D0;&#x4E9B;&#x5143;&#x7D20;&#x5728;&#x6211;&#x4EEC;&#x6D4F;&#x89C8;&#x5668;&#x7684;&#x7A97;&#x53E3;&#x4E0A;</p>

                    
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